A building contractor/engineer is increasing his price for building projects, claiming that the cost of labor and

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A building contractor/engineer is increasing his price for building projects, claiming that the cost of labor and material is going up and accounts for 65% of his budget. In a random sample of 30 of his projects it is found that in 20 of the projects the cost of the material is higher.

What is the standard error of the proportion?

Posted Date: May 14, 2024 05:46 AM

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A building contractor/engineer is increasing his price for building projects, claiming that the cost of labor and

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